Pieces =  6
cksum.aa = 439655812 1425408
cksum.ab = 4217379894 1425408
cksum.ac = 1508203969 1425408
cksum.ad = 1672026787 1425408
cksum.ae = 2792959772 1425408
cksum.af = 2622049016 43417